Discovery of an ∼30-yr-duration post-nova pulsating supersoft source in the Large Magellanic Cloud

Autor: M. D. Soraisam, Filippos Koliopanos, Georgios Vasilopoulos, Frank Haberl, Andrzej Udalski, Tyrone E. Woods

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2020, 499 (2), pp.2007-2014. ⟨10.1093/mnras/staa2922⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 499 (2), pp.2007-2014. ⟨10.1093/mnras/staa2922⟩

Supersoft X-ray sources (SSS) have been identified as white dwarfs accreting from binary companions and undergoing nuclear-burning of the accreted material on their surface. Although expected to be a relatively numerous population from both binary ev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b42ecaab8b294a672304cfcffb2d1591
https://doi.org/10.1093/mnras/staa2922

The chemical composition of the accretion disc and donor star in ultra-compact X-ray binaries: A comprehensive X-ray analysis

Autor: Natalie A. Webb, Mathias Péault, Georgios Vasilopoulos, Filippos Koliopanos

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 501 (1), pp.548-563. ⟨10.1093/mnras/staa3474⟩
Monthly Notices of the Royal Astronomical Society, 2021, 501 (1), pp.548-563. ⟨10.1093/mnras/staa3474⟩

We have analyzed the X-ray spectra of all known Ultra Compact X-ray Binaries (UCXBs), with the purpose of constraining the chemical composition of their accretion disk and donor star. Our investigation was focused on the presence (or absence) of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3ffd0828ce99745726e46b1a179d6a6
https://hal.archives-ouvertes.fr/hal-02458717

Disappearance of the Fe K$\alpha$ emission line in Ultra Compact X-ray Binaries 4U 1543-624 and Swift J1756.9-2508

Autor: Filippos Koliopanos, Sebastien Guillot, N. A. Webb, Georgios Vasilopoulos

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 500 (4), pp.5603-5613. ⟨10.1093/mnras/staa3490⟩

We investigate the long-term variability of the K$\alpha$ line of iron in the spectra of two Ultra Compact X-ray Sources (UCXBs) with C/O-rich donors. We revisit archival observations by five different X-ray telescopes, over a ~twenty year period. Ad

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f20ed73bccc7c361e099db91a278a99e
http://arxiv.org/abs/2001.00713

The XMM-Newton serendipitous survey. X: The second source catalogue from overlapping XMM-Newton observations and its long-term variable content

Autor: Filippos Koliopanos, Christian Motch, J. Kurpas, Michael Freyberg, Axel Schwope, M. G. Watson, Jean Ballet, N. A. Webb, I. Traulsen, María Teresa Ceballos, Francisco J. Carrera, Georg Lamer, Mickael Coriat, Laurent Michel, M. J. Page

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 641, pp.A137. ⟨10.1051/0004-6361/202037706⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Astronomy and Astrophysics-A&A, 2020, 641, pp.A137. ⟨10.1051/0004-6361/202037706⟩

arXiv:2007.02932v1
[Context]: The XMM-Newton Survey Science Centre Consortium (SSC) develops software in close collaboration with the Science Operations Centre to perform a pipeline analysis of all XMM-Newton observations. In celebration of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbf95eb125403594adff8f35ecdafcdd

Identification of 3XMM J000511.8+634018 as a new polar at $P_{orb}$ = 133.5 min – is it inside or outside the period gap?

Autor: Axel Schwope, N. A. Webb, Filippos Koliopanos, H. Worpel, Sebastien Guillot

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 637, pp.A35. ⟨10.1051/0004-6361/202037708⟩

We aimed to identify the variable X-ray source 3XMM J000511.8+634018, which was serendipitously discovered through routine inspections while the 3XMM catalogue was compiled. We analysed the archival XMM-Newton observation of the source, obtained BUSC

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::678016610fca7f0019f3dec3c1055b27
https://hal.archives-ouvertes.fr/hal-02550058